CN210423847U

CN210423847U - Positive pressure pulse valve

Info

Publication number: CN210423847U
Application number: CN201920806665.XU
Authority: CN
Inventors: 柯雨停
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-28
Anticipated expiration: 2029-05-31

Abstract

The embodiment of the utility model discloses a positive pressure pulse valve, including shell and the exhaust hole of setting on the shell, shell outside both ends are provided with thin footpath entry and thick footpath export respectively, and the position that is close to thick footpath export in the shell is equipped with the baffle, install the check valve in thick footpath export, the shell is inside to be provided with the inflation bag, the both ends of inflation bag are established respectively on thin footpath entry and baffle, in thick footpath export fixed mounting has the bracing piece, on the bracing piece fixed mounting with the inflation bag export contact and control the elasticity valve door of inflation bag exit switch; this device simple structure, easily operation can seal the pipe or dose for the continuous malleation pulsed of pipeline automatically, lasts the malleation and avoids palirrhea, has alleviateed staff's burden, has improved the efficiency of work.

Description

Positive pressure pulse valve

Technical Field

The embodiment of the utility model provides a relate to pulse valve technical field, concretely relates to malleation pulse valve.

Background

The pulse type tube sealing or drug administration is an application mode of deep vein catheterization in clinic, is suitable for the difficulty of venipuncture, patients needing long-term infusion, liquid and drugs can be timely input into the bodies of the patients during rescue, and the pulse type tube sealing or drug administration device has the characteristics of rapidness, high efficiency, safety and pain relief for the patients.

However, the conventional positive pressure pulse valve has the following disadvantages:

the existing pulse valve device is complex in structure, manual operation is too complicated, rapid operation and standardized use are not facilitated, working efficiency is not high due to the fact that working personnel are burdened in work, and therefore a positive pressure pulse valve which is simple in structure and easy to operate is necessary to design.

SUMMERY OF THE UTILITY MODEL

To not enough among the background art, the embodiment of the utility model provides a positive pressure pulse valve can effectively solve the problem among the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a positive pressure pulse valve, includes the shell and sets up the exhaust hole on the shell, shell outside both ends are provided with thin footpath entry and thick footpath export respectively, and are in the position that is close to thick footpath export in the shell is equipped with the baffle install the check valve in the thick footpath export, the inside inflation bag that is provided with of shell, the both ends of inflation bag are established respectively thin footpath entry with on the baffle fixed mounting has the bracing piece in the thick footpath export fixed mounting have with inflation bag exit linkage and control the elasticity valve of inflation bag export switch on the bracing piece.

The embodiment of the utility model provides a characterized in that still, the baffle is annular fixed mounting on the inner wall of shell, and the inner circle and the closed fixed connection of inflation bag of baffle.

The embodiment of the utility model provides a characterized in that still, the elasticity valve is the T font, just the elasticity valve includes movable rod and dog the cover is equipped with the spring on the movable rod, the one end of spring is fixed the end of movable rod, just the other end of spring is fixed on the baffle.

The embodiment of the utility model provides a characterized in that still, the baffle passes through the spring along the axial motion of movable rod, and is in the inside spout that is used for installing the energy storage ware that is provided with of movable rod.

Compared with the prior art, the device has the advantages that:

this device simple structure, easily operation can seal the pipe or dose for the continuous malleation pulsed of pipeline automatically, lasts the malleation and avoids the refluence, does not need additionally to provide the energy, has alleviateed staff's burden, has improved the efficiency of during operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the check valve of the present invention;

FIG. 3 is a schematic view of the structure of the elastic valve of the present invention;

in the figure:

1-a housing; 2-a small diameter inlet; 3-a large-diameter outlet; 4-air vent; 5-a one-way valve; 6-expansion capsule; 7-a baffle plate; 8-elastic valve; 9-a support bar;

501-cylindrical tube; 502-circular ring; 503-blocking piece; 504-a rotating shaft;

801-a block; 802-a movable bar; 803-a spring; 804-chute.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the utility model provides a positive pressure pulse valve, including shell 1 and the exhaust hole 4 of setting on the shell, exhaust hole 4 can in time be arranged air in the shell 1, be convenient for can enough energy storage, shell 1 outside both ends are provided with thin footpath entry 2 and thick footpath export 3 respectively be provided with check valve 5 in the thick footpath export 3, the inside expansion bag 6 that is provided with of

shell

1, 6 one end of expansion bag is fixed the thin footpath entry 2 other end is connected on fixing the baffle 7 in the inside both sides of shell 1 fixed mounting has bracing piece 9 in the thick footpath export 3 install elasticity valve 8 on the bracing piece 9.

The check valve 5 comprises a cylindrical pipe 501, one end of the cylindrical pipe 501 is provided with a circular ring piece 502, the circular ring piece 502 is connected with a baffle 503 through a rotating shaft 504, the check valve 5 is fitted and sleeved in the small-diameter inlet 2 and the large-diameter inlet 3, the installation direction of the check valve 5 is consistent with the flow direction of liquid in the pipeline, the baffle 503 is opened by using the impulsive force of the liquid so that the liquid can flow to the outlet, and when the impulsive force in the pipeline is lost, the baffle 503 closes the pipeline with the circular ring 502 due to the self gravity, and the liquid is prevented from flowing back.

The elastic valve 8 is of a T-shaped structure and comprises a movable rod 802 and a stop block 801, a spring 803 is sleeved on the movable rod 802, a sliding groove 804 which penetrates through the movable rod 802 longitudinally is arranged in the movable rod 802, when the stop block 801 is subjected to certain thrust, the spring 803 is blocked by the supporting rod 9, the spring 803 is gradually compressed through an energy accumulator, the sliding groove 804 on the movable rod 802 moves on the supporting rod 9, and when the stop block 801 loses the thrust or the energy accumulation of the energy accumulator reaches a critical value, the elastic valve 8 is restored to an initial state under the action of elastic potential energy of the spring 803.

The area of the baffle 503 can cover the area of the inner ring of the ring 502, but is smaller than the area of the outer ring of the ring 502, so that the baffle 503 can completely block the passage of the ring 502, and the pipeline can be completely closed.

The elastic valve 8 has a certain elastic potential energy in an initial state, so that the stop 801 and the baffle 7 can be tightly attached together, and the expansion bag 6 can store energy conveniently. The baffle 7 is in an L-shaped structure, the right angle of the baffle 7 is fixed with one end of the expansion bag 6, and the size of an outlet formed by the two baffles 7 is smaller than that of the stop 801, so that the baffle 7 and the elastic valve 8 can form a sealed structure.

The working principle of the device is as follows: in an initial state, the elastic valve 8 closes the expansion bag 6, when liquid is continuously added into a pipeline, the expansion bag 6 stores energy, when the energy stored in the expansion bag 6 is fully larger than the thrust of the elastic valve 8 and the pressure is increased, the liquid extrudes the stop block 801 to compress the spring 803 to open the elastic valve 8, and the liquid flows to an outlet;

because the elastic potential energy of the spring 803 is only less than the pressure when the expansion bag 6 reaches the expansion critical, once the expansion bag 6 releases the pressure after reaching the critical, the spring 803 closes the expansion bag 6 again due to the elastic potential energy of the spring 803, so that the expansion bag 6 is refilled with liquid to accumulate pressure, and in the process of continuously adding liquid from the small-diameter inlet 2, the elastic valve 8 is continuously and repeatedly opened and closed to achieve the pulse change of the outlet pressure, thereby achieving the purpose of pulse liquid discharge.

In this embodiment, it is further preferred that an accumulator is provided in the chute 803 to continuously impact the stop 801 when fluid is continuously flowing out, and since an accumulator is provided behind the stop 801 to gradually accumulate energy in the stop 801 by the continuous impact action, the pressure of the pulse is preferably further controlled by releasing the push stop 801 to return to the initial position and closing the expansion bladder when the accumulated energy reaches a critical value. In the above, the accumulator may be of a spring type or a piston type.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a positive pressure pulse valve, includes shell (1) and exhaust hole (4) of setting on the shell, its characterized in that, shell (1) outside both ends are provided with thin footpath entry (2) and thick footpath export (3) respectively, and the position that is close to thick footpath export (3) in shell (1) is equipped with baffle (7) install check valve (5) in the thick footpath export (3), shell (1) inside is provided with inflation bag (6), establish respectively at the both ends of inflation bag (6) thin footpath entry (2) with on baffle (7) thick footpath export (3) internal fixation installs bracing piece (9) fixed mounting has and controls inflation bag (6) exit linkage's elasticity valve (8) on bracing piece (9).

2. The positive pressure pulse valve according to claim 1, characterized in that the baffle (7) is fixedly arranged on the inner wall of the shell (1) in an annular shape, and the inner ring of the baffle (7) is fixedly connected with the expansion bladder (6) in a closing manner.

3. The positive pressure pulse valve according to claim 1, wherein the elastic valve (8) is T-shaped, the elastic valve (8) comprises a movable rod (802) and a stopper (801), a spring (803) is sleeved on the movable rod (802), one end of the spring (803) is fixed at the tail end of the movable rod (802), and the other end of the spring (803) is fixed on the stopper (801).

4. The positive pressure pulse valve according to claim 3, characterized in that the stopper (801) is moved in the axial direction of the movable rod (802) by a spring (803), and a slide groove (804) for mounting an accumulator is provided inside the movable rod (802).